14 entries under unperturbed topic. ×

13
calm(adjective, calm, quiet, cool, still)
11
composed(adjective, calm, quiet, cool, moderate)
11
unruffled(adjective, calm, quiet, cool, moderate)
7
tranquil(adjective, quiet, cool, still, peaceful)
6
collected(adjective, calm, quiet, cool, moderate)
6
unflappable(adjective, calm, quiet, cool, moderate)
3
undisturbed(adjective, quiet, cool, moderate, gentle)
2
cool(adjective, calm, quiet, still, peaceful)
2
relaxed(adjective, quiet, cool, moderate, gentle)
1
unflustered
1
unmoved(adjective, quiet, cool, moderate, gentle)
0
at ease(expression, tranquil)
0
in control(expression, tranquil)
0
unflurried
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APASmart Define. (2013). cool-headed thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/cool-headed/thesaurus/synonyms
ChicagoSmart Define. 2013. "cool-headed thesaurus" https://smartdefine.org/cool-headed/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, cool-headed thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/cool-headed/thesaurus/synonyms>.
MLASmart Define. "cool-headed thesaurus" 17 June 2013. Web. 27 September 2026. <https://smartdefine.org/cool-headed/thesaurus/synonyms>